On November 29, Stéphanie van der Pas receives the ASML Graduation Prize for Mathematics at the Royal Holland Society of Sciences (KHMW) in Haarlem. She proved that a new method to choose a research model works better than the usual standard method.

In a closed room in the Van Steenis building, hundreds of boxes are waiting under fluorescent lights for someone to come and see them. The jumble of handwritten and printed labels unveils how often the collection has been reorganized, moved and rearranged. Boxes full of potsherds and pottery, human…

The newly established Luxembourg Centre for European Law held its inaugural conference on 10-11 October 2025, exploring the theme of “European Union law and values in a changing world”. Martijn was invited to speak about the relationship between European values and democracy.

Over a century ago, Alexandra van Elroy's great-grandfather left for Japan, where her grandmother was born. Together with her mother, Maaike van der Loon, she reminisces about her family history, through which a key thread is the study of Japanese and Chinese.

Inaugural lecture

On 12 December 2019, Dr Yannick van den Brink, assistant professor at the Department of Child Law and Rubicon Research Fellow at the University of Cambridge, gave a keynote speech at the conference ‘Strengthening Juvenile Justice Systems in Europe’, which was organised in Valencia, Spain.

Bob de Brabandere discovered his deep passion for cinema through a minor in Film and Theatre Studies. He currently serves as Assistant Manager at Bioscopen Leiden and as a programmer for the Leiden International Film Festival, which commences on 9 October.

This thesis, conducted in the framework of ERC Starting grant project BABYLON (PI: Caroline Waerzeggers), presents an investigation into Babylonian society, focusing on the city of Borsippa during Neo-Babylonian and early Persian rule (c. 620-484 BCE).

The research will touch upon the communal role of text and the actions of interpretation and discussion that developed among Jews in exile.

The Vrijthof excavations (1969-1970)

What was the stringed instrument known in medieval and early Renaissance Italy as “cetra”?

Curious about how sustainability fits into our university's strategic plan, or how much energy and water we consume? Read about it here.

Promotor: G.A. Persoon, Co-promotor: H.H. de Iongh

In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.

In this sub-project a selected number of narrative texts will be examined written in the Eurasian realm in the period 1300-1800, focusing on representations of kingship and royal authority.

How can we monitor and protect biological and cultural diversity in Suriname best? What can we learn from local knowledge and customs associated with biodiversity? How can we understand current species, acoustical, behavioural, and ecological diversity from an evolutionary perspective? Can we predict…

Ongoing microwear analysis of the flint artefacts from the Funnelbeaker period suggests that flint had a pivotal role in the representation and structuration of the cosmological order of Funnelbeaker society.

Impressions by Oene de Haan - PhD candidate at Utrecht University

Are you interested in taking up an extra challenge during your master’s programme?

Members of the collective explore what it means to be ‘human’, in the past and present, from a range of different perspectives and inter-disciplinary approaches.

How do documentary moving images and fictional narratives involve and evolve each other?

The linguistic project constitutes the connection between the two other subprojects. It consists of two parts.

How can a CLIL approach, with a focus on disciplinary literacies, improve the teaching of the LLA programme’s literary component in senior bilingual education (TTO)?

This thesis contains results on the arithmetic and geometry of del Pezzo surfaces of degree 1.In Chapter 1 we give the necessary background, assuming the reader is familiar with algebraic geometry.

The 21st century is witnessing a revolution in our understanding of rational points on surfaces and higher-dimensional varieties, and it is in this field that this project lies.

How do Chinese language teachers negotiate who they are as teachers when they work abroad? This dissertation offers clear, practice-oriented answers. It examines teacher identity - the everyday answer to 'What kind of teacher am I here?' - as it is reshaped through classroom interactions, institutional…

The Flentrop Organ is the third organ to have been built for the Great Auditorium in the Academy Building in Leiden.

This UNESCO Chair at CWTS aims to contribute to UNESCO’s agenda to foster diversity and inclusion in science. The chair has two main lines of work:

Research at the MCBIM group is comprised of the following research themes:

MERGE aims to understand how we can improve the usefulness and accessibility of policy frameworks and indicators on well-being and strengthen the transition toward sustainable development policies.

CADS researchers give methodology their own unique signature through two parallel engagements: (a) teaching and researching the full range of social science methods, from audio-visual engagements, through global ethnography, to statistical analysis; and (b) interrogating these multiple modalities employing…

This book argues that Armenians around the world – in the face of the Genocide, and despite the absence of an independent nation-state after World War I – developed dynamic socio-political, cultural, ideological and ecclesiastical centres. And it focuses on one such centre, Beirut, in the postcolonial…

This collection brings into conversation several kinds of scholarship on medieval authorship which have tended to remain separate over the last two to three decades, a period of steadily increasing scholarly interest in this topic.

To what extent and in what manner can experimental video be used to reclaim the capacity for telling one’s own story, on one's own terms, speaking in tongues outside the linguistic framework of immune system discourse?

Subproject of

This project employs a systematic experimental approach to examine the interaction of these two hitherto independent lines of research (tone sandhi and focus realization) in six dialects of Chinese, which lie on a continuum between dialects with dense tonal distributions and sparser distributions. In…

The Kroese-Duijsters symposium will be held in the Gorlaeus Building of the Faculty of Science.

They were called 'annoying brats', the group of campaigning scientists who in 1978 founded what is now an internationally acclaimed ecological research institute. Their stories and those of the current staff of the Institute of Environmental Sciences are described in the book 'Forty years of Leiden…

How do different communities of residents in The Hague perceive and manage food waste in relation to citizenship (rights and responsibilities)?

How does stress affect different components of behavioral impulsivity and aggression in patients with Borderline Personality Disorder compared to clinical controls (patients with Attention Deficit Hyperactivity Disorder) and healthy controls?

The project aims to conserve and consolidate the entrance gate to the Roman Desert Frontier Fort Qasr Bshir.

Jews and Christians in the Middle East

Do natural soundscapes affect migratory decisions of fishes moving up and down rivers and is this process disturbed by vessel sounds?

In the master's specialisation Global Ethnography, will follow several courses that aim to make your research project as successful as possible. From writing an academic research proposal to the complex task of writing up data once you return from the field. Each student also receives individual supervision…

This research project seeks to understand the dynamics in the relationship between social media, mobile telephony and the social fabric under duress in Africa's mobile margins. It combines studies on mobility/migration, conflict and communication in an attempt to uncover these new dynamics, which have…

What was the stringed instrument known in medieval and early Renaissance Italy as “cetra”?

Material Crossovers

Does the sitter have agency in the making of a photographic portrait? And if so how?

How can we gain insights in the connection between teaching practices and theoretical elaborations of purposes of education?

Find out where you as a Leiden University student can turn for support if you need it. Also read about dignity and respect in the online learning environment.